Interesting piece in the SF Chronicle by Dan Fost and Carrie Kirby about how the Internet changed the experience of the war in Iraq. A snippet:
"Three (things) have changed," said Howard Rheingold of Mill Valley, author of "Smart Mobs: The Next Social Revolution." "One is access to information and news. Another is the ability for people to publish their own views. And finally there's the ability to organize action in the physical world."
(Reason's Jesse Walker interviewed Rheingold a few months back; it's online here).